Brick for hot-blast stoves.



AE. E, SLIGK.

BRICK FOR HOT BLAST sToVBS.

APPLIATION FILED JUNE 29, 1914. L1 30,031 Patented Mar. 2, 1915.

2 SHEETS-SHEET 1.

L; Y muuu* E. E. SLICK.

BRIGK FOR HOT BLAST sToVBs.'

APPLICATION FILED JUNE 29, 1914.

LI SAISL Patented Mar. 2, 1915.

2 SHEETS-SHEET 2.

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EDWIN E. SLICK, OF WESTMONT BOROUGH, PENNSYLVANIA.

BRICK FOR HOT-BLAST STOVES.

To all whom it, may concern.'

Be it known that EDWIN E. SLICK. a citizen of the United States, residing in the borough of Westmont, in the county of Cambria and State of Pennsylvania, (whose post-oilice address is Johnstown, Pennsylvania,) have invented ,certain new and use'- ful improvements in Bricks for Hot-Blast Stoves; and l do hereby declare the following to be a full, clear, and exact description of the invention, Such as will enable others skilled in the art to which it appertains to make and use the same.

In a hot blast stove the extreme changes of temperature, to which the bricks of the checker work -regenerators are alternately subjected, cause a contraction and expansion of the bricks to such an extent that the bonds of the bricks,y in 'a relatively short period of time, are broken, thereby leaving the bricks in such a loose state that the eX- plosions and sudden blasts, common in all such stoves, will very readily shift the said bricks from alinement; therefore the vertical flues will become stopped up and the eficiency of the stove greatly reduced.

It is one of the objects of my invention to so shape the bonding edges of the regenerator bricks that it will be impossible for my improved bricks to be shifted from their pre-arranged positions.

Another object of my inventionis to so construct the bricks as to admitof the erection of the regenerator lues ina true vertical alinement, whereby the cleaning apparatus may be inserted through them, if

necessary.

Other objects of my invention will be evident from the accompanying drawings and the description herein.

Having thus given a general description of my invention, I will now, in order to make the matter more clear, refer to'the accompanying sheets of drawings which form part of this specification and in which like characters refer to like part-s.

Figure l is a horizontal sectional elevation through a hot blast stove showing my bricks laid at right angles to each other and having their ends rabbetcd on one side of the brick. Fig. 2 is a top plan View of a portion of the brick work laid as illustrated in Fig. l, butV drawn on an enlarged scale. Fig. 3 is a top plan view of one of the bricks detached; Fig. 4 is a side elevation of Fig. 3; Fig. 5 is a vertical transverse sectional elevation Specicaton of Letters'Patent.

Patented Mar. 2, Ml.

Application led. J une 29, 1914. Serial No. 847,836.

taken on the line V-V of Fig. 2; Fig. 6 illustrates another arrangement 0f laying the bricks within the stove; Fig. 7 shows, on an enlarged scale, a modied form of my bricks having their ends grooved vor rabbeted on opposite sides thereof; Fig. 8 is a vertical transverse sectional elevation simi-V lar to Fig. 5, but showing the brick work laid with broken vertical joints; Fig. 9 shows a cross-shapcd form of my brick; Fig. 10 illustrates an L-shaped form of my brick which may be used; Fig. l1 is another modiied form of cross-shaped brick, and Fig. 12 illustrates my brick made T-shaped in top plan view.

Referring now to the various characters of reference on the drawings 1 is one form of hot blast stove with the combustion chamber 2 at one side thereof. The checker work regenerator 3 is constructed of one form of my improved lbrick 4 Which is more fully illustrated in Fig. 3. The said brick 4 is formed with notches 5 in the ends, said notches extending in the direction of the greatest dimension of the brick, or, as it were, from top to bottom of the said brick. These notches are of such dimensions as will permit the bricks to be built up as shown in Figs. 2 and 5.

In Fig. 5 the tops and bottoms of all the bricks of one course are shown to lie in the same horizontal joint or plane, but in order to facilitate better alinement during erection, the horizontal joints may be broken as shown in Fig. 8. In this form of construction, bricks at right angles to each other in the same flue willhave their tops and bottoms respectively in different horizontal planes and opposite parallel bricks of the same flue will have their tops and bottoms respectively in the same planes. Thus opposite parallel bricks of the different flues form openings to receive bricks that are placed at right angles thereto in the same flues. |These openings, adapted to receive each brick, ymake it possible to keep the alinement of the iiues vertical.

As shown in Fig. 7, l may use a br1ck 7, having ends rabbeted or grooved on opposlte sides thereof, but as in the construction of bricks 4, these grooves preferably extend in the direction of the greatest dimension of the brick. ll do not limit the use of my improved bricks to any particular form of hot blast stove, but may use same in any form of regenerator.

In Fig. 6 I show another form of hot blast stove 8 with a central combustion chamber 9 and checker work 10 around said central combustion chamber.

My improved bricks may be used in the construction of regenerators for numerous other types of hot blast stoves as will be readily understood.

In Figs. 1 and 6 the checker work regenerators are constructed of bricks, 'the top plan views of which are as shown in Fig. 3.

I may also use other forms of bricks with grooves extending from the top to the bottom of the bricks.

1.1 is a large cross-shaped brick with i grooves in the ends thereof, said grooves extending. -from the top to the bottom of the brick; 12 is a small cross-shaped brick with grooves in the ends thereof, said grooves exp tending from the top to the bottom of the brick; 13 is an L-shaped brick having rab-l beted or grooved ends 14, as shown, and av modified groove 15 in the vertex of the L,

as illustrated; 16 is a T-shaped brick with'v grooves in the ends thereof, a central groove 17 in the top of the T, said grooves extending froml the top to the bottom-of the brick.

In order to more clearly describe fmy bricks I wish to explain that when laid in place, the lower surface I call the bottom, the upper surface I call the top, and the narrower portions or end surface which extend up and down 'I' call the lateral ends,

thereby distinguishing from the top and bottom ends. Similarly the wider and larger surfaces which extend up and down when the bricks are in place I call the sides.

1. In a regenerator, a flue structure comv prised of bricks, the lateral ends of each of which are grooved on one side ofthe central longitudinal plane and fitted together thereby, to form iues.

2. In aregenerator, a flue structure comprised of bricks, the lateral ends of which are corner rabbeted in the direction of the 3. In a regenerator,a structure comprised of bricks, the lateral ends of which are provided with substantially rectangular grooves on` one side of the central longitudinal plane, whereby they are fitted and interlocked to form iues. l

4. In a regenerator, a iiue structure comprised of substantially rectangular bricks, the lateral ends of which are provided with substantially rectangular grooves on one edgewith rounded corners, whereby they are itted together and interlocked 5. In a regenerator, a flue structure com-` prised. of bricks havingprojections on one edge of opposite lateral ends, whereby they are fitted and interlocked.

6. In a regenerator, a flue structure comprised of bricks having projections, ap'- proximately equal in thickness to half the brick on one edge of opposite lateral ends, whereby they are itted together and interlocked.

7 In -a regenerator, a flue structure comprised of bricks, the lateral ends of which are provided with grooves on one side, the alternating bricks being staggered or arranged at different levels, whereby they are fitted together and firmly interlocked.

8. A brick for regenerator construction, provided with a substantially rectangular groove on one side of each lateral edge, the groove being of width substantially equal to half the brick thickness.

9. A brick for regenerator construction of general rectangular outline, provided with a substantially rectangular projection on one side of each lateral edge, thereby forming an adjacent groove of form similar in shape and dimensions to said projection.

In testimony whereof I hereto affix my signature in the presence of two witnesses.

A. Dix Trr'rLE, PLUMA F. LoNGsHoRE. 

